Battery reconditioning question

Ok, so Ive reconditioned a few battery packs but I've clearly gotten lucky as far as load testing goes. My question is can i load test my modules by discharging at 2 amps? This is super low I know but the most my charger will do. Ive hooked up 2 headlight bulbs but as far as i can tell this also only gives 2 amps of discharge. Am i wrong in this? When testing this bulb thing it took damn near 3 min to discharge from 8.something to 7.5 volts. That seems too long.

NOte: this is my 300th time reconditioning this particular pack, but i have 3 more (of questionable capacity) and Im just trying to squeeze the last bit out of this one while filling in my gaps of knowledge about this whole process. When discharging (from full-ish, what is full? delta peak doesnt catch on my chargers) to 7.2 volts at 2 amps, i get numbers from 1300 mah - 3500 mah. But none that are close to 0. But 2 amps is nothing compared to the amps that are slammed and drained from these modules by driving. Right? I see most people recommend load testing @ 20 amp, what the hell are you guys using that can drain that much?